DM

Donald McCallum

WL Wright Line: 1 patents #22 of 39Top 60%
Overall (All Time): #1,433,116 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11001973 Apparatus and components for turnout/crossover section for railway track Roy Anderson, Henry Maxwell 2021-05-11
7604205 Turnout/crossover section for railway track 2009-10-20
D363701 Shelf support and electrical cable management structure Edmund T. Paquette 1995-10-31